To install a version earlier than the version currently installed, use a bootable installer of macOS High Sierra or later. The Mac must also be using macOS High Sierra or later, the latest version of macOS Sierra or the latest version of OS X El Capitan. To install the latest release version of macOS, download it from the App Store. To download an installer suitable for creating a bootable installer, use the App Store or use a web browser to download from a compatible Mac. Follow the onscreen installation instructions.Ī bootable installer can be useful if you want to install macOS on multiple computers without downloading the installer each time, or when you can't install using the other methods. Open your Applications folder and double-click the macOS installer, named Install. The files are now located in /macOS\ Install\ Data. Run installer, which downloads installer files, stop installer when it asks to restart. After downloading to your Applications folder, the installer opens automatically. Use the App store (recommended) Download 'Install macOS High Sierra.app' from App Store. Software Update might open and ask you to download from there. Next, boot from the cloned external drive we created. This is important because your Mac OS High Sierra clone will have drivers and system files specific to that machines hardware. Step Three on the current Mac you will have to allow the patcher app to install for use through the security settings. installing ports, namely compiling and installing MacPorts itself: cd into. Step two you will need to download the High Sierra Patcher tool. Installers for legacy platforms Catalina, Mojave, High Sierra, Sierra, El. Cick the Get button in the App Store to begin downloading. Note: Be sure to complete your SuperDuper clones on the same type of Mac you will install the RAID 0 configuration on. Step one you will need to download a copy of the high Sierra dmg file. pkg file, then follow the onscreen instructions to install the macOS installer into your Applications folder. Monterey 12 Big Sur 11 Catalina 10.15 Mojave 10.14 High Sierra 10.13 Use these links to find macOS in the App Store. dmg file to open it and see the package (.pkg) file within.ĭouble-click the. Use these links to download a macOS disk image (.dmg) file.ĭouble-click the.
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